Vacuum device



C.. 8, 1935. R F. STRATTON 2,017,031

VACUUM DEVICE Filed Sept. 17, 1934 /rUR/VEW Patented Oct. 8, 1935 PATENT OFFICE VACUUM DEVICE Ralph F. Stratton, Winberry, Oreg., assigner of one-half to George S. Reid, Portland, Oreg.

Application September 17, 1934, Serial No. 744,373

1 Claim.

This invention relates generally to the washing and cleansing of air and to the recovery of certain materials floating in the air.

The main object of this invention is to prevent the contamination of the air supply at smelters, incinerators and crematoriums, as well as other places which make the surrounding air unpleasant or unhealthful to breathe or destructive to vegetation, as well as to make it possible to re- 10 claim from gaseous by-products certain valuable materials which are otherwise destructively scattered about the community.

The second object is to render possible the operation of smelters in close pro-ximity to timbered areas without any injury to the timber itself.

These, and other objects, will become more apparent from the specification following as illustrated in the accompanying drawing, in which: 20' Fig. 1 is an elevation showing the preferred form of the device with a portion of the water tank broken away in section.

Fig. 2 is a vertical section through the injector shown in Fig. 1.

25 Fig. 3 is a section taken along the line 3-3 in Fig. 2.

Similar numbers of reference refer to similar parts throughout the several views.

Referring in detail to the drawing, the furnace 30 I0 is shown discharging into the collector I I from which the vacuum pipe 5| extends downwardly to the elbow 52 whose horizontal portion 53 lies along the horizontal axis of the injector through whose conical end 54 the elbow 52 passes.

35 Communicaing with the conical end 54 is the elbow 55 through whose stuffing box 56 extends the tubular nozzle 51 whose tip 58 extends into the horizontal portion 53 of the elbow 52. The

nozzle 51 is slidable with relation to the elbow 52 through whose wall it passes. The nozzle 51 is controlled by means of a cut-off valve 59.

The position of the tip 58 with relation toy the end 6U of the elbow portion 53 is controlled by an adjusting screw 6I which passes through an arm 45 62 on the nozzle 51 and the lug 63 which projects from the stuing box 56. A suitable hand wheel 64 is supplied for rotating the screw 6I. Obviously, any other form of adjusting means may be employed without departing from the lspirit of the invention.

The elbow 55 is connected by means of a low pressure water pipe 65 to the outlet of a pump 66 whose inlet is connected by a pipe 61 to the riser pipe 68 within the water tank 69.

55 It is preferable to provide the tank 69 with Various baliies 10 in order to insure a complete circulation of the gases through the liquid in the tank 59.

Surrounding the elbow end 53 is the conical injector body 1I which is flanged to the member 5 54 in spaced relation to the outermost corners 12 of the elbow end 53, whereby the clearance between the corner 12 and the interior of the body 1| is substantially the same as the area of the pipe 65. The outlet 13 of the injector is also 10 conical and is connected to the body 1l, but is tapered in an opposite direction thereto.

The member 13 connects directly with the perforated discharge pipe 14 of the injector, which pipe extends horizontally through the wall 15 15 into the tank 69.

It will be noted here that the spray 16 from the nozzle tip 58 forms the apex of the cone of which the member 13 forms the base, and it is important that the adjustment of the tip 58 be such that 20 this condition prevails, and it is equally important that the end'B-or rather the interior corner thereof-shall coincide substantially with the spray cone 16: that is to say, the spray cone 16 which leaves the nozzle tip 58, is in alignment with the corner 11 and the interior face 18 of the member 13.

It is important that the water supplied to the nozzle 51 be under considerable pressure compared with that in the pipe 65, the purpose of which is to reduce the volume of high pressure water required, and at the same time minimize the agitating action set up within the tank 69 by the escape of water and gas from the perforated discharge pipe 14.

I claim:

A vacuum device of the type described consisting of two conical members having their bases joined and having a gas inlet pipe within same coaxial with said conical members, the discharge 40 end of said inlet pipe being near the outer end of one conical member, said gas inlet vpipe communicating with the exterior of said body, a high pressure water nozzle projecting coaxially into said gas inlet pipe the tip of which nozzle is adjustably disposed within said gas, pipe, the discharge end of said gas inlet pipe being spaced from the interior of its adjacent conical body, means for admitting water to said conical bodies under a relatively low pressure compared with the pressure of the water delivered to said spray nozzle, and a perforated spray pipe through which the discharge from said injector must pass.

RALPH F. STRATTON. 

